/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/ShapeApproximation/MeshSimpleShapeApproximation.h
Setup/initialization Initialize internal mesh sets. This also detects/caches the precise simple shape fits controlled by bDetectSpheres/etc above, so those cannot be modified without callingInitializeSourceMeshes()again. The TSharedPtrs are stored, rather than making a copy of the input meshes
void InitializeSourceMeshes ( const [TArray](API\Runtime\Core\Containers\TArray)< const [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) * > & InputMeshSet )